126342465220 has 48 divisors (see below), whose sum is σ = 267654965760. Its totient is φ = 50094026496.

The previous prime is 126342465167. The next prime is 126342465241. The reversal of 126342465220 is 22564243621.

It is a self number, because there is not a number n which added to its sum of digits gives 126342465220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 978391 + ... + 1099969.

It is an arithmetic number, because the mean of its divisors is an integer number (5576145120).

Almost surely, 2^126342465220 is an apocalyptic number.

126342465220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126342465220 is an abundant number, since it is smaller than the sum of its proper divisors (141312500540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126342465220 is a wasteful number, since it uses less digits than its factorization.

126342465220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122044 (or 122042 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 126342465220 in words is "one hundred twenty-six billion, three hundred forty-two million, four hundred sixty-five thousand, two hundred twenty".